package com.szrt.javase;

public class aaa {

	public static void main(String[] args) {
		for (int i=0;i<20 ;i++ )
		{
			for (int j=20;j>=i ;j-- )
			{
				System.out.print(" ");
			}
			for (int k=1;k<=2*i-1 ;k++ )
			{
				System.out.print("*");
			}
			System.out.println();
		}
	}

}
